[INFO] cloning repository cholcombe973/memory_monitor
[INFO] running `"git" "clone" "--bare" "git://github.com/cholcombe973/memory_monitor.git" "work/cache/sources/gh/cholcombe973/memory_monitor"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/cholcombe973/memory_monitor'...
[INFO] running `"git" "clone" "work/cache/sources/gh/cholcombe973/memory_monitor" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cholcombe973/memory_monitor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cholcombe973/memory_monitor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cholcombe973/memory_monitor" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/cholcombe973/memory_monitor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/cholcombe973/memory_monitor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d8ab76e99a4df363cbbb0e1b844420d1a1270557
[INFO] sha for GitHub repo cholcombe973/memory_monitor: d8ab76e99a4df363cbbb0e1b844420d1a1270557
[INFO] validating manifest of cholcombe973/memory_monitor on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cholcombe973/memory_monitor on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cholcombe973/memory_monitor
[INFO] finished frobbing cholcombe973/memory_monitor
[INFO] frobbed toml for cholcombe973/memory_monitor written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cholcombe973/memory_monitor/Cargo.toml
[INFO] started frobbing cholcombe973/memory_monitor
[INFO] finished frobbing cholcombe973/memory_monitor
[INFO] frobbed toml for cholcombe973/memory_monitor written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/cholcombe973/memory_monitor/Cargo.toml
[INFO] crate cholcombe973/memory_monitor has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded process_utils v0.1.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cholcombe973/memory_monitor against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-6/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cholcombe973/memory_monitor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1abcf1b0fd5d51fd294c0383fcef6dcec58c7369c4d3e3242d9707b142aabb5e
[INFO] running `"docker" "start" "-a" "1abcf1b0fd5d51fd294c0383fcef6dcec58c7369c4d3e3242d9707b142aabb5e"`
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking quick-error v1.2.0
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking simplelog v0.4.2
[INFO] [stderr]     Checking humannum v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.1
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking process_utils v0.1.0
[INFO] [stderr]     Checking memory_monitor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 | /     kill_and_restart(
[INFO] [stderr] 86 | |         pid_info,
[INFO] [stderr] 87 | |         memory_byte_limit,
[INFO] [stderr] 88 | |         matches.is_present("parent"),
[INFO] [stderr] 89 | |         matches.is_present("test"),
[INFO] [stderr] 90 | |     );
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 | /     kill_and_restart(
[INFO] [stderr] 86 | |         pid_info,
[INFO] [stderr] 87 | |         memory_byte_limit,
[INFO] [stderr] 88 | |         matches.is_present("parent"),
[INFO] [stderr] 89 | |         matches.is_present("test"),
[INFO] [stderr] 90 | |     );
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.82s
[INFO] running `"docker" "inspect" "1abcf1b0fd5d51fd294c0383fcef6dcec58c7369c4d3e3242d9707b142aabb5e"`
[INFO] running `"docker" "rm" "-f" "1abcf1b0fd5d51fd294c0383fcef6dcec58c7369c4d3e3242d9707b142aabb5e"`
[INFO] [stdout] 1abcf1b0fd5d51fd294c0383fcef6dcec58c7369c4d3e3242d9707b142aabb5e